Function open_sqlite_connection 

pub fn open_sqlite_connection(
    db_path: &str,
    options: &SqliteOpenOptions,
) -> Result<Connection, BoxError>

按路径与选项打开 SQLite 连接，并自动应用 pragma 与 tokenizer 初始化。 Open a SQLite connection from a path and options, then apply pragmas and tokenizer setup.